well, after i figured out that I couldn't pull the valve cover off, I put it back on the radiator fan mount bracket and put it back down in front...

the msd coil interface thingies make it rougly 1" taller than normal and it doesn't get in the way of anything. I just hate the plug wire routing from down there.

And with my experience in the past with ignition boxes going bad, I'm planning on ordering a 12 pin deutsch connector and creating a loop connector that I can carry in the glove box so I can bypass the MSD DIS-4 in case something happens.

 

I may mount mine where the HVAC currently sits. I've got time to figure it all out before May. Don't have room down below as the Blower will be sitting there w/ all that tubing.

 

I had a simmilar problem on the engine dyno. We "bypassed" the optispark totally and hooked up a MSD crank trigger to the FAST which completely solved all the ignition problems. It came down to at a certain level the opti could no longer provide a reliable signal for spark timing.

 

Yeah I've been talking about my 383 vortech supercharged car. Someone told me to try a colder plug but I'm not sure which to go with.

 

The reason we run colder plugs in supercharged cars is because the added cylinder pressure/temperature could turn the plug into a glow plug and lead to detonation. As long as that doesn't occur and the plug stays clean you're fine with your plug selection. With a carburetor its pretty easy to tell if your plugs are causing a problem on shutoff, efi kills the fuel so there is no run on making it more difficult.

What gap are you running? With a coil per cylinder and non waste spark I would gap between .040-.045" starting at .045". The NGK's are good plugs and the TR6 is very common with both LT1's and 4.6 Fords.

 

.035 was recommended and that is what I went with. I'm not sure if they are turning into glow plugs or not but I am getting some early firing resulting in pops and backfires.

 

I would widen the gap, you have pleanty of ignition energy for it. When does it pop and backfire? If it happens on decel look for an exhaust leak.

 

I thought the 6's were one range colder. NGK recommended TR7ix for the setup I'm trying to put together. (Around 8psi)

 

BPR6EFS is one step colder than stock. It is a non V-Power plug.

We would never recommend a precious metal plug in a boosted application.